forked from Minki/linux
845f46356b
Use the new CRTC atomic transitional helpers drm_helper_crtc_mode_set() and drm_helper_crtc_mode_set_base() to implement the CRTC .mode_set and .mode_set_base operations. This delegates primary plane configuration to the plane .atomic_update and .atomic_disable operations, removing duplicate code from the CRTC implementation. There is now no code path available to the driver in which to drop the reference to the CRTC acquired in the .prepare() operation if an error then occurs. The driver thus now leaks a reference if an error occurs during mode set. So be it, this will be fixed in a further step of the atomic update transition. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
/*
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* rcar_du_plane.h -- R-Car Display Unit Planes
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*
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* Copyright (C) 2013-2014 Renesas Electronics Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __RCAR_DU_PLANE_H__
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#define __RCAR_DU_PLANE_H__
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#include <linux/mutex.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc.h>
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struct rcar_du_format_info;
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struct rcar_du_group;
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/* The RCAR DU has 8 hardware planes, shared between primary and overlay planes.
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* As using overlay planes requires at least one of the CRTCs being enabled, no
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* more than 7 overlay planes can be available. We thus create 1 primary plane
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* per CRTC and 7 overlay planes, for a total of up to 9 KMS planes.
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*/
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#define RCAR_DU_NUM_KMS_PLANES 9
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#define RCAR_DU_NUM_HW_PLANES 8
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struct rcar_du_plane {
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struct drm_plane plane;
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struct rcar_du_group *group;
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struct drm_crtc *crtc;
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bool enabled;
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int hwindex; /* 0-based, -1 means unused */
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unsigned int alpha;
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unsigned int colorkey;
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unsigned int zpos;
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const struct rcar_du_format_info *format;
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unsigned long dma[2];
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unsigned int pitch;
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unsigned int width;
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unsigned int height;
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unsigned int src_x;
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unsigned int src_y;
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unsigned int dst_x;
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unsigned int dst_y;
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};
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struct rcar_du_planes {
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struct rcar_du_plane planes[RCAR_DU_NUM_KMS_PLANES];
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unsigned int free;
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struct mutex lock;
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struct drm_property *alpha;
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struct drm_property *colorkey;
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struct drm_property *zpos;
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};
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int rcar_du_planes_init(struct rcar_du_group *rgrp);
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void rcar_du_plane_setup(struct rcar_du_plane *plane);
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void rcar_du_plane_update_base(struct rcar_du_plane *plane);
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void rcar_du_plane_compute_base(struct rcar_du_plane *plane,
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struct drm_framebuffer *fb);
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#endif /* __RCAR_DU_PLANE_H__ */
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